Experimental study of the transverse spatial dependence of thermally induced absorptive bistability

• Type: Article in International Scientific Journal
• Date: 1999

Authors

Pereira, F (Author) FEUP; Salcedo, JR (Author) FCUP; Belsley, M (Author) Other

Journal

Title: Journal of the Optical Society of America B: Optical Physics

Vol. 16

Pages: 228-235

ISSN: 0740-3224

Publisher: Optical Society of America

Indexing

ISI Web of Knowledge - 4 Citations

Scopus - 4 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-001-57A

DOI: 10.1364/josab.16.000228

Abstract (EN): We have characterized the transverse spatial dependence of the real and the imaginary Darts of the complex nonlinear refractive index of a semiconductor-doped glass filter that exhibits absorptive bistability. Using the Z-scan technique combined with an interferometric measurement of the integrated optical thickness, we are able to fit the observed experimental data, assuming a quadratically varying transverse temperature profile in the sample. The transverse variations in the nonlinear refractive index do not scale directly with the size of the incident beam but exhibit marked asymmetries that depend on whether the incident beam is converging or diverging. (C) 1999 Optical Society of America [S0740-3224(99)01802-0].

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8